| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef _UAPI__SOUND_USB_STREAM_H |
| #define _UAPI__SOUND_USB_STREAM_H |
| #define USB_STREAM_INTERFACE_VERSION 2 |
| #define SNDRV_USB_STREAM_IOCTL_SET_PARAMS _IOW('H', 0x90, struct usb_stream_config) |
| struct usb_stream_packet { |
| unsigned offset; |
| unsigned length; |
| }; |
| struct usb_stream_config { |
| unsigned version; |
| unsigned sample_rate; |
| unsigned period_frames; |
| unsigned frame_size; |
| }; |
| struct usb_stream { |
| struct usb_stream_config cfg; |
| unsigned read_size; |
| unsigned write_size; |
| int period_size; |
| unsigned state; |
| int idle_insize; |
| int idle_outsize; |
| int sync_packet; |
| unsigned insize_done; |
| unsigned periods_done; |
| unsigned periods_polled; |
| struct usb_stream_packet outpacket[2]; |
| unsigned inpackets; |
| unsigned inpacket_head; |
| unsigned inpacket_split; |
| unsigned inpacket_split_at; |
| unsigned next_inpacket_split; |
| unsigned next_inpacket_split_at; |
| struct usb_stream_packet inpacket[0]; |
| }; |
| enum usb_stream_state { |
| usb_stream_invalid, |
| usb_stream_stopped, |
| usb_stream_sync0, |
| usb_stream_sync1, |
| usb_stream_ready, |
| usb_stream_running, |
| usb_stream_xrun, |
| }; |
| #endif |